Jacquard mechanism.



No. 814,337 PATENTES MAR. 6, QGB. C. VURWERK. AGQUARD MEGHANISM.APPLIGHXGEHLEBQUTJ,1903.

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Specification of Letters Patent.

Patented March 6, 1906.

application led October 5, 190B. Serial No. 1?5,74B.

To all whom it may concern:

Beit known that I, CARL VosWEnK, a subject ofthe German Emperor,residing at Barmen, in the Rhine Province, Prussia, VGermany, haveinvented certain new and useful Im rovements in Jacquard Mechanism, ofwhich the following is a specification accompanied by drawings.

This invention relates to jacquard mechanisrn enabling the figuringWarp-threads to be lifted or lowered at each card the varying distancesrequired to bring the proper yarns in line in accordance with thepattern to be produced.

The objects of the invention are to improve upon the construction of thesame mechanism yandincrease the efliciency of the ap aratus.

urther objects of the invention will hereinafter appear; and to theseends the invention consists of apparatus `for carrying out the aboveobjects embodying the features of construction, combinations ofelements, and arrangement of parts havin the eneral Inode oi o erationsubstantiaglly as creinafter fullyV escribed and claimed in thisspecifloat-ien and shown in the accompanying draw-V in s, in Whichigure1 is a side elevation, partly in section, of the improved jacquardmechanism constructed in accordance with this invention. Fig. 2 is anedge view of the improved peg-stri? Fig. 3 is a side view of the egstnp.ig. 4 is an enlarged detail `'bro en face view of the needle-plate.

In the jacquard ap aratus hitherto employed the needles pus 'ng the pegsagainst the strips or bars for liftin the ile-yarn carriers are arrangedmore orless obli uely relatively to a horizontal line, as the istance ofthe egs from each other must necessaril be muc greater than that of theneedles om each other in the late facing the patterncards. There are'sadvantages in this oblique arrangement, for the needles do not moveeasil enough, which results in much trouble an loss of time. In order toobviate these 4disadvantages accordin to this invention, the needles aredispose horizontally, a splingless Vset 12 with a spring set 13, andeach splingless needle 12 is connected with a vertical needle 14. Thesevertical needles 14 can be very thin and numerous and arranged veryclosely together, thus allowing the use of relatively thin, small,manageable, and cheap aper cards and affording provision for tlie use ofmany Hframes or colors, (independent colors,) if desired, up to as manyas thirty-three in this instance, Whereas the mechanism hitherto useddoes not afford provision for substantially more than eleven. Thepegstrips 15 are equal in number to the yarn-carriers which are suitablysuspended to them, as by means of Wires, so that every lift given to apeg-strip is imparted to the corresponding yarn-carrier. The peg-strips15 are guide y top and bottom comb-frames 16 and 17,

stop-pieces 18 preventing them from dropping too low. Every strip 15 isprovided Wit as many holes as the yarn-carriers, and also the distanceof the holes from each other is exactly the same as that ci the holes inthe yarn-carriers. ln the holes of the strips are fitted movable pegs19. Gppcsite every peg 19 is a horizontal needle 13, guided by theplates 20, 21, and 22. These needles have small bosses 23 and spiralsprings 24.

O posits the needles 13 and corresponding to tliem in number are theneedles 12 With heads 25. Every such needle passes throu h the guidelate26 and through the eye of tlie correspon ing vertical needle 14. Thesevertical needles are guided by the top frame 2'? and bottom frame 28.Below these needles 14 is a card-cylinder cariin and movinv thedesign-cards. Facing t e ee ends o the horizontal needles is apushing-grate 30 With the usher-rules 31, which grate has a for- War andbackward movement actuated by any suitable means. At the opposite side,facing the ends of the pegs 19, is a pushingplate 32, which also has aforward and back- Ward movement imparted thereto by any suitable means,and adfacent to the stri s 15 isa lifting-bar 33, Whic has an up and ownmotion imparted thereto.

The needles 12 and 14,V the plates 22, and the pushers 31 for-m thepitch-reducing device, as shown in United States Patent No. 346,87?,granted Au st 3, 1836, to Jules Verdol, for a jacquar machine, and theac- ICO tuating apparatus illustrated in that patent is one suitableform of operative actuating mechanismfor the parts mentioned, althou hany other suitable operative means may Iie provided.

The operation of the apparatus is as follows: The card-cylinder 29,guide-bar 28, and the readjusting-plate above the top guideplate 27 areraised together, whereby in each row of needles corresponding to onepegstrip all but one of the needles are pressed u ward by blanks orimperforated portions ofD the cards, the remaining needle of each rowbeing that which corresponds with the color indicated b the design andfor which, therefore, a hole had to be stamped into the card, so thatthe needle can enter the corresponding hole of the cylinder-plate, andthus remain stationary. Each vertical needle 14 being pressed upwardraises the free end of its corresponding horizontal needle 12 to such aheight that this end clears the vertical side of the usher-rule 30,whereas the horizontal need es 12 of those vertical needles 14 notpressed back, but which have entered the holes, remain in theirposition. The ushinggrate 30 is then moved forwar and pushes the latterneedles against their corres onding spring-needles, and these push backt 1e egs 19 against the strips 15, from which all t e pegs areprojecting at first toward the plate 20, so that these egs, one forevery strip, now project beyon the opposite side of the strips. Thecard-cylinder 29, guide-bar 28, the readjusting-plate above the topguideplate 27, and the pushing-grate 30 are now returned, so that thosevertical needles which were pushed upward drop back or are forciblyreplaced in their former position. Those horizontal needles 12 whichwere pushed forward are returned by the readjusting-plate 22, While thecorrespondin horizontal needles 13 are pressed back to t eir rstposition under the action of the spiral springs 24 or are forciblyreturned by a readjusting-plate. Then the lifting-barBS is raised to theposition 33, and in its movement it catches the one projecting peg ofevery strip, thus lifting the strips to an extent equal to one or moreholes, according to the articular eg that projects as previously seected by t e card, and the corresponding yarn-carriers are liftedthereby to the same extent to bring their pile-threads into thehorizontal line at which the gri perpoints act. Then the loom goesthroug various movements, the lifting-bar 33 and the strips 15 areallowed to come down to their former position, and the pushing-plate 32moves against the strips and pushes the selected pegs back, so that allthe pegs are rojecting again at the side toward the nee les,

as represented in Fig. 1, ready for the next action after the ret,urn ofthe pushing-plate 32.

The peg-strips hitherto used hav(` been provided with simple pegs withheads at one side and were freely movable. This, however, entails thedrawback that the pegs are liable to be shaken back and forth. byvibration when the loom is running, whereby the pegs are damaged by thelifting-bar 33, Fig. 1 which consequently dama res the strips andneedles, and, furthermore, t e yarn-carriers, the fabric, and the cards.In order to remedy these defects, I employ means for effecting a brakeor frictional action upon the 'pegs-as, for example, by means of springs36, Fig. 3, which are fixed in the recesses of the strips. Collars 35 inthis instance revent the pegs from movin too far. Anot er improvementconsists in t e means for removin the single s ring-needles 13 out ofthe need e-plate 21,

ig. 1. Great trouble has hitherto been found in removin such a needlewhen injured by bending. It as always been necessary to remove all ofthe needles up to the one which has been bent before the bent needlecould be grip ed. To obviate such an inconvenience, provide in the plate21 additional holes between the small holes for the needles, saidadditional holes being large enough to permit the collars on the needlesto pass through, and the arrangement is such that through each of theseadditional holes two needles of the row above and two needles of the rowbelow can be removed, it only being necessary to irst remove theushinggrate 30, the needles 12 and 14, and t e guideplates 22 and 26,and this can readily be done all at the same time, as these parts areconne cted in such manner as to form one piece.

Obviously some features of this invention may be used without others,and the invention may b'e embodied in widely-varying forms.

Therefore, without limiting myself to the construction shown anddescribed nor enumerating equivalents, I claim, and desire to obtain byLetters Patent, the following:

1. In a jacquard mechanism, the combination with peg-strips rovided withmovable pegs, of correspon ing straight parallel spring-needles,corresponding straight parallel springless needles, and vertical needleseach operating in conjunction with one of the horizontal springlessneedles and corresponding to one hole in the card-cylinder, forsubstantially the purposes set forth.

2. In a jacquard mechanism, the combination with pe -strips and movablepegs a set of horizonta needles and a set of vertical needles connectedto operate in conjunction therewith and being controlled by the pat- IOOIIO

tern-cards, of e second set of horizont-s neeprovided with Vaperturesfor removing the dies opposite the pegs of the eg-strps, forspring-needesololtof theneed1es-case ,forsub substantially the purposesset orth. y stantelly the purposes set forth.

3. 1n jacquard meohenislmthe combine- In Ytestimony whereof I havesigned this 5 tion of peg-strips provided with movable spee'feetion inthe presence of two subseribl5 egs, and means 'for preventing these pegsing Witnesses.

rom shaking back end forth under Vibration, CARL VORVVERK. forsubstautlally the purposes set forth. Witnesses:

4. In a jacquard mechanism, the oombina- QTTo KNIG,

Io tion with the sprng-needes, of e guide-plate J. A. RITTERSHAUS.

